Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BCrawlabilityno robots.txt, no sitemapREVIEW
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.
Learn more ▾ ▴
A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.
Source: robotstxt.org
A sitemap helps search engines discover and index your pages more efficiently.
No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.
Learn more ▾ ▴
A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.
Source: sitemaps.org / Google Search Central
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
No sitemap found
Adding a sitemap helps search engines discover your pages.
BTLS Certificate Expiry & Recommendations182 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Add includeSubDomains to the HSTS directive
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- Enable DNSSEC on your domain for DNS spoofing protection
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
BCDN & DeliveryVercelREVIEW
ADNS Records1 A records, 356 ms lookupPASS
| A | 76.76.21.21 |
| AAAA | — |
| CNAME | — |
| NS | ns04.adjust.works, ns03.adjust.works, dns2.p09.nsone.net, dns4.p09.nsone.net, ns02.adjust.works, ns01.adjust.works, dns3.p09.nsone.net, dns1.p09.nsone.net |
| MX | 10 aspmx.l.google.com 20 alt2.aspmx.l.google.com 20 alt1.aspmx.l.google.com 30 aspmx3.googlemail.com 30 aspmx2.googlemail.com |
| TXT | SPF v=spf1 mx ip4:136.243.153.110/26 ip4:136.243.38.205/26 ip4:138.201.130.67/26 ip4... fastly-domain-delegation-NaZ93uPO3CPGk4KzuyEO-465938-02-16-22 zdm1585nx3jp4j6rgmc0ftm44lyffrcc MS=ms91392298 839FC53FDA 4E59304358 _2mgx0gdbme3ki5s337rt8jug47oa8i8 miro-verification=466ab057897152b6f77a03a39837da20e9dcd016 openai-domain-verification=dv-WsOr3PtgzRhQ28QaIILomJim atlassian-domain-verification=raDxE7jPrFu+9q16RNhQMpc1N2cII9sRSSpxGo6Rur0Fvq3gAb... h1-domain-verification=N3L6LWD32uB8YuRHHkJKHhTnzigvw2fe5V4F9xCWoM3hTUmG figma-domain-verification=1149781de96e4b177fb8e460ea26e6f36e8f08497eba0a7ac30f53... projectdiscovery-verification=71eb0b3563 anthropic-domain-verification-mz70bc=Nk7vXemxtlnom9lztnSGEsmRd _u6sjnkq3kiw6ec2hylz78kflt54w753 |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.
Learn more ▾ ▴
Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.
Source: SRE practice / DNS architecture
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
Slow DNS adds latency to every page load. Consider a faster DNS provider.
DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.
Source: DNS performance benchmarks
ARedirect Chain1 redirect(s), 160 ms totalPASS
https://adjust.com
134 ms · HTTP/1.1
https://www.adjust.com/
26 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://adjust.com | 307 | 134 ms | HTTP/1.1 | Vercel |
| 2 | https://www.adjust.com/ | 429 | 26 ms | HTTP/1.1 | Vercel |
See the visual redirect chain in the HTTP Probe tab →
AURL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
A+Domain Intelligenceadjust.com — via Mesh Digital Limited, 30 years, 11 months old, hosted on AWSPASS
104 days
September 26, 2026
182 days
Issued by DigiCert Inc
30 years, 11 months
Registered September 27, 1995
Not enabled
Protects against DNS spoofing
AWS
ASN AS16509
76.76.21.21
Mesh Digital Limited
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.
Learn more ▾ ▴
DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.
Source: ICANN / RFC 4033
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.
Learn more ▾ ▴
Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.
Source: ICANN / domain-security best practice